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The LOw Frequency ARray (LOFAR) is a next-generation radio telescope whichuses thousands of stationary dipoles to observe celestial phenomena. Thesedipoles are grouped in various 'stations' which are centred on the Netherlandswith additional 'stations' across Europe. The telescope is designed to operateat frequencies from 10 to 240\,MHz with very large fractional bandwidths(25-100%). Several 'beam-formed' observing modes are now operational and thesystem is designed to output data with high time and frequency resolution,which are highly configurable. This makes LOFAR eminently suited for dynamicspectrum measurements with applications in solar and planetary physics. In thispaper we describe progress in developing automated data analysis routines tocompute dynamic spectra from LOFAR time-frequency data, including correctionfor the antenna response across the radio frequency pass-band and mitigation ofterrestrial radio-frequency interference (RFI). We apply these data routines toobservations of interplanetary scintillation (IPS), commonly used to infersolar wind velocity and density information, and present initial scienceresults.

The Dynamic Spectrum of Interplanetary Scintillation: First Solar Wind Observations on LOFAR